EP1014119A1 - Polariseur dichroique - Google Patents

Polariseur dichroique Download PDF

Info

Publication number
EP1014119A1
EP1014119A1 EP98940724A EP98940724A EP1014119A1 EP 1014119 A1 EP1014119 A1 EP 1014119A1 EP 98940724 A EP98940724 A EP 98940724A EP 98940724 A EP98940724 A EP 98940724A EP 1014119 A1 EP1014119 A1 EP 1014119A1
Authority
EP
European Patent Office
Prior art keywords
electromagnetic radiation
layer
dichroic
polarizer
dichroic polarizer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98940724A
Other languages
German (de)
English (en)
Other versions
EP1014119B1 (fr
EP1014119A4 (fr
Inventor
Pavel Ivanovich Lazarev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Optiva Inc
Original Assignee
Optiva Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Optiva Inc filed Critical Optiva Inc
Publication of EP1014119A1 publication Critical patent/EP1014119A1/fr
Publication of EP1014119A4 publication Critical patent/EP1014119A4/fr
Application granted granted Critical
Publication of EP1014119B1 publication Critical patent/EP1014119B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid

Definitions

  • the invention belongs to polarizing devices and can be used in lighting equipment. manufacturing construction-material glasses and optical instruments, for example, spectrophotometers and displays.
  • dichroic polarizers considered within the framework of the proposed invention is based on the property of a number of materials usually termed dichroic, to differently absorb orthogonal linearly-polarized components of electromagnetic radiation.
  • Dichroic film polarizers termed polaroids or polarizing light filters are the most widely applied.
  • materials containing molecules or particles for example, microcrystals
  • these molecules or particles have extended shapes, so orientation of molecules or particles is performed during manufacturing a polarizer in the certain (chosen) direction, also known as the absorption axis.
  • the transmission plane of the polarizer (the polarizer plane) is then located perpendicularly to the absorption axis.
  • the absorption degree of the components depends on orientation of the electrical vector oscillation relative to the chosen direction.
  • the terms absorbed (parasitic) component and non-absorbed (the useful component) will be used.
  • Dichroic polarizers consisting of polymeric films strongly stretched in one direction and containing dichroic molecules, which become oriented during stretching, for example, the iodine-polyvinyl polarizers based on polyvinyl alcohol ([1], pages 37-42). These polarizers are multilayer films including, along with the polarizing layer, also the reinforcing, gluing, and protecting layers.
  • the basic disadvantage of the specified film polarizers is rather high labor input required for their manufacturing.
  • the polarizer closest in the technical basis to the one described herein is the dichroic polarizer including a substrate on which a molecularly oriented layer is deposited which has been obtained from organic dye which is in the lyotropic liquid crystal state (application PCT 94/05493, Cl. C09B31/147, 1994).
  • organic dye which is in the lyotropic liquid crystal state
  • the purpose of the invention is to increase the efficiency of a dichroic polarizer at the expense of increasing the polarization degree of electromagnetic radiation while preserving the high transmission (reflection) coefficient for the non-absorbed component.
  • the purpose set herein is achieved because, in a dichroic polarizer containing a substrate and a layer of a dichroic material, two reflecting coatings are introduced at least one of which is made partially transmitting, and the dichroically absorbing layer is located between the two reflecting coatings.
  • a dichroic polarizer containing a substrate and a layer of a dichroic material two reflecting coatings are introduced at least one of which is made partially transmitting, and the dichroically absorbing layer is located between the two reflecting coatings.
  • the dichroic polarizer can be implementing as a reflective one, and one of the reflecting coatings will in this case be made completely reflecting, while the second will be partially transmitting. Then, the first coating to be deposited from the substrate side may be either the reflecting one (completely reflecting), or the partially transmitting one.
  • the multipath interference results in obtaining, at the exit of the dichroic polarizer, interference maxima, minima, as well as intermediate intensity values, depending on thicknesses and materials of layers and coatings constituting the polarizer.
  • the materials and layer thicknesses of the dichroic polarizer should be chosen from the requirement to obtain, at the polarizer exit, an interference minimum for the absorbed components for at least one wavelength of the electromagnetic radiation.
  • the wavelength for which an interference minimum should be obtained can be set at, for example, the wavelength corresponding to the middle of the used spectral range.
  • the width of the used spectral range is then determined from the following considerations.
  • the optical path length difference between interfering beams should be ( ⁇ /2+m ⁇ ), which is an odd number of half-waves.
  • the outcome of interference is largely influenced by the ratio of amplitude values of the interfering beams. It is known that the minimal intensity value can be obtained when the amplitudes are equal. Therefore, it is relevant to make the amplitude values of the interfering beams for the absorbed components as close as possible to each other, which would provide maximal mutual cancellation of beams of these components. Simultaneously, one should ensure a significant difference between the amplitudes of the interfering beams for the non-absorbed components, which will practically exclude the opportunity for these beams to interfere, i.e. intensities of the non-absorbed components will not be appreciably reduced. If both requirements are satisfied, increase in the polarization degree will be ensured, which is more important than some decrease in transmission (reflection) of the polarizer.
  • the reflecting coatings can be made either of metal, or manufactured from multilayer dielectric mirrors consisting of alternating layers of materials with high and low refraction coefficients.
  • the metal coatings are easy enough to deposit, for example, by thermal evaporation in vacuum. But then, light is absorbed in such coatings, which reduces transmission (reflection) of the polarizer.
  • aluminium (Al), silver (Ag), and other metals can be used.
  • TiO 2 , MgO, ZnS, ZnSe, or ZrO 2 , or polymers can be used as the high refraction coefficient materials.
  • SiO 2 , Al 2 O 3 , CaF 2 , BaF 2 , AlN, BN, or polymers can be used.
  • any dichroically absorbing material can in principle be used, which can be shaped as a layer with the thickness comparable to the wavelength, in particular, equal to ⁇ /4.
  • a molecularly oriented organic dye which is in the lyotropic liquid crystalline state, from the following series:
  • the specified organic dyes allow to orient the dichroic dye molecules directly during layer deposition.
  • the technological process of obtaining dichroic polarizers becomes considerably simpler, and, consequently, its cost decreases.
  • a layer dichroically absorbing electromagnetic radiation the following standard methods can be applied: deposition by a platen, by a doctor knife, by a doctor in the form of a non-rotating cylinder, deposition using a slit spinneret or die, etc.
  • Figs.1-3 The invention is illustrated by Figs.1-3.
  • Fig.1 a scheme is shown of a dichroic polarizer according to the prototype.
  • Fig.2 a scheme of a reflective-type dichroic polarizer is shown according to the invention.
  • Fig.3 a scheme of a transmitted-light dichroic polarizer according to the invention is shown.
  • Fig.1 the scheme of a dichroic polarizer according to the prototype is presented including a layer 1 dichroically absorbing electromagnetic radiation and deposited onto a substrate 2.
  • non-polarized electromagnetic radiation 3 passes the layer 1 dichroically absorbing electromagnetic radiation and deposited on the substrate 2, and becomes the linearly polarized electromagnetic radiation 4.
  • a scheme of a dichroic reflective-type polarizer according to the invention including a layer 1 dichroically absorbing electromagnetic radiation, a layer 11 completely reflecting electromagnetic radiation, and a layer 5 partially reflecting electromagnetic radiation. All layers are consecutively deposited onto a substrate 2.
  • the non-polarized electromagnetic radiation consists of two linearly polarized components 7 and 8, with their polarization planes mutually perpendicular (these two components are conventionally shown apart from each other in Figs. 2 and 3 for better presentation and understanding).
  • the absorbed and not further used component 7, which is polarized parallel to the absorption axis of the layer 1 dichroically absorbing electromagnetic radiation, is partially reflected from the layer 5 partially reflecting electromagnetic radiation, and forms the beam 9.
  • the other part of energy of the component 7 passes through the layer 1 dichroically absorbing electromagnetic radiation, and, after being reflected from the layer 11 completely reflecting electromagnetic radiation, passes the layer 1 once again and then the layer 5 forming the beam 10.
  • the reflected beams 9 and 10 are polarized identically to the initial component 7.
  • the thickness of the layer 1 is chosen so as the optical path length difference between beams 9 and 10 becomes an odd number of half-waves of polarized electromagnetic radiation, where the wavelength corresponds to the middle of the used spectral range.
  • interference of the beams 9 and 10 results in their mutual weakening, and complete cancellation in the optimum case.
  • Complete mutual cancellation of the beams 9 and 10 is achieved if the intensities (amplitudes) of the beams 9 and 10 have either identical or close values, which can be achieved by optimally selecting reflection coefficients of the reflecting layers 5 and 11.
  • the reflecting layers 5 and 11 can be made of metal, semi-conductor or dielectric, and be either single-layer or multilayer.
  • the other part of energy of the component 8 passes through the layer 1 dichroically absorbing electromagnetic radiation, and, after being reflected from the layer 11, passes the layer 1 once again and then the layer 5, and forms the beam 13.
  • the reflected beams 12 and 13 are polarized identically to the initial component 8. Interference results in weakening the beams 12 and 13 considerably less than the beams 9 and 10. This is caused by the fact that that their intensities considerably differ because of the negligibly small absorption of the beam 10 in the layer 1.
  • the polarizer includes a layer 1 dichroically absorbing electromagnetic radiation and layers 2 and 14 partially reflecting electromagnetic radiation. All layers are deposited onto a substrate 2.
  • the non-polarized electromagnetic radiation consists of two linearly polarized components 7 and 8, with their polarization planes mutually perpendicular. Both of these components pass through the layer 5 partially reflecting electromagnetic radiation, and then through the layer 1 dichroically absorbing electromagnetic radiation. A part of the energy of the components 7 and 8 passes through a layer 14 partially reflecting electromagnetic radiation, and forms beams 16 and 15 respectively. The other part of energy of the components 7 and 8 is reflected from the layer 14 partially reflecting electromagnetic radiation passes the layer 1, becomes reflected from the layer 5, once again passes the layers 1 and 14, and forms the beams 17 and 18 respectively.
  • the beams 15 and 18 are polarized identically to the initial component 8, i.e., perpendicularly to the absorption axes.
  • the passed beams 16 and 17 are polarized identically to the initial component 7, i.e., parallel-perpendicular to the absorption axes.
  • the purpose of this invention is achieved because of unequal reduction of the differently polarized components 3 and 7 of electromagnetic radiation passing through a dichroic polarizer during interference of the parts 4 and 6 of the component 3, as well as parts 8 and 11 of the components 7. This is ensured by specially selecting thicknesses of layer 1, 2 and 5.
  • the optical thickness of the layer 1 dichroically absorbing electromagnetic radiation should be an integer number of wavelengths of polarized electromagnetic radiation.
  • a criterion for choosing the reflection coefficients of the layers 2 and 5 can be, for example, the maximal contrast of the dichroic polarizer.
  • the optimum thicknesses of the layers 2 and 5 do not affect the basis of the invention.
  • the layers 2 and 5 partially reflecting electromagnetic radiation can be made of metal or a multilayer dielectric, which does not affect the basis of the invention.
  • a dichroic polarizer of the reflective type according to the invention for polarization in the visible (light) wavelength range, i.e. for the wavelengths band of 400-700 nm, is made as follows. On a glass substrate, the following layers are consecutively deposited: an aluminium, strongly reflecting layer of 100 nm thickness (deposited using thermal evaporation in vacuum); then a 50 nm thick layer dichroically absorbing electromagnetic radiation made of a mixture of dyes alone of Formulas I.2.3; and then a 2 nm thick aluminium layer partially reflecting electromagnetic radiation.
  • a dichroic reflective-type electromagnetic radiation polarizer (Fig.2) polarizing in the visible (light) wavelength range is manufactured as follows.
  • a strongly reflecting layer with 98% reflection coefficient in the 490-510 nm wavelength range is deposited onto a glass plate as a multilayer dielectric coating. This coating is made of alternating MgF 2 and cryolite layers.
  • a 120 nm thick layer is deposited which dichroically absorbs electromagnetic radiation and is made of oriented dye of Formula II .
  • a layer is deposited partially reflecting electromagnetic radiation, with reflection coefficient of 28%, also made of MgF 2 and cryolite layers.
  • a dichroic transmitted-light electromagnetic radiation polarizer (Fig.3) polarizing in the wavelength region of 620-640 nm is manufactured as follows. A 20 nm thick, partially reflecting aluminium layer is deposited onto a glass plate (deposition using thermal evaporation in vacuum). Then a 140 nm thick layer dichroically absorbing electromagnetic radiation made of oriented dye of Formula IV is deposited. Finally, the second 20 nm thick aluminium layer partially reflecting electromagnetic radiation is deposited.
  • a dichroic transmitted-light electromagnetic radiation polarizer according to the invention (Fig.3) polarizing in the near infra-red wavelength range is manufactured as follows.
  • a layer partially reflecting in the 700-1200 nm wavelength range having the reflection coefficient of 40-55% is deposited onto a glass plate as a multilayer dielectric coating made of layers of zinc sulfite and ammonium phosphate.
  • a 180 nm thick layer dichroically absorbing electromagnetic radiation made of oriented dye of Formula X is deposited, and then a layer partially reflecting electromagnetic radiation with the reflection coefficient of 28%, also made of layers of zinc sulfite and ammonium phosphate.
  • the polarizing ability of the prototype was 75%, with 80% reflection of the useful polarized components by the dichroic polarizer.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
EP98940724A 1997-08-11 1998-08-03 Polariseur dichroique Expired - Lifetime EP1014119B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU97113613/28A RU2124746C1 (ru) 1997-08-11 1997-08-11 Дихроичный поляризатор
RU97113613 1997-08-11
PCT/RU1998/000251 WO1999008140A1 (fr) 1997-08-11 1998-08-03 Polariseur dichroique

Publications (3)

Publication Number Publication Date
EP1014119A1 true EP1014119A1 (fr) 2000-06-28
EP1014119A4 EP1014119A4 (fr) 2001-12-12
EP1014119B1 EP1014119B1 (fr) 2005-11-02

Family

ID=20196160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98940724A Expired - Lifetime EP1014119B1 (fr) 1997-08-11 1998-08-03 Polariseur dichroique

Country Status (7)

Country Link
US (1) US6942925B1 (fr)
EP (1) EP1014119B1 (fr)
JP (1) JP3792510B2 (fr)
CN (1) CN1109903C (fr)
DE (1) DE69832185T2 (fr)
RU (1) RU2124746C1 (fr)
WO (1) WO1999008140A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004068179A2 (fr) * 2003-01-24 2004-08-12 Nitto Denko Corporation Polariseur de correction de couleur
US9353092B2 (en) 2013-06-27 2016-05-31 University Of Notre Dame Du Lac Synthesis and use of croconaine compounds

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2155978C2 (ru) * 1998-10-28 2000-09-10 ОПТИВА, Инк. Дихроичный поляризатор и способ его изготовления
JP3741011B2 (ja) 2001-07-27 2006-02-01 セイコーエプソン株式会社 液晶表示装置および電子機器
WO2003025092A1 (fr) * 2001-09-21 2003-03-27 Optiva, Inc. Afficheur a cristaux liquides dote d'un polariseur reflechissant
RU2226708C2 (ru) 2001-09-21 2004-04-10 ОПТИВА, Инк. Жидкокристаллический дисплей с отражающим поляризатором
IL148804A (en) * 2002-03-21 2007-02-11 Yaacov Amitai Optical device
JP3765284B2 (ja) 2002-04-09 2006-04-12 セイコーエプソン株式会社 液晶表示装置及びその製造方法、並びに電子機器
JP3858755B2 (ja) 2002-05-15 2006-12-20 セイコーエプソン株式会社 液晶表示装置とその製造方法ならびに電子機器
JP2004163581A (ja) * 2002-11-12 2004-06-10 Konica Minolta Holdings Inc 光学補償フィルム、偏光板及び液晶表示装置
CN100442090C (zh) * 2003-01-24 2008-12-10 日东电工株式会社 色校正偏振器
US9096014B2 (en) 2003-07-01 2015-08-04 Transitions Optical, Inc. Oriented polymeric sheets exhibiting dichroism and articles containing the same
US7256921B2 (en) * 2003-07-01 2007-08-14 Transitions Optical, Inc. Polarizing, photochromic devices and methods of making the same
US10073264B2 (en) 2007-08-03 2018-09-11 Lumus Ltd. Substrate-guide optical device
US10261321B2 (en) 2005-11-08 2019-04-16 Lumus Ltd. Polarizing optical system
US20070211257A1 (en) * 2006-03-09 2007-09-13 Kearl Daniel A Fabry-Perot Interferometer Composite and Method
CN102112913B (zh) * 2008-08-27 2013-10-09 夏普株式会社 电极接触构造、具备它的液晶显示装置及电极接触构造制造方法
US9052116B2 (en) 2008-10-30 2015-06-09 Power Generation Technologies Development Fund, L.P. Toroidal heat exchanger
JP5844641B2 (ja) * 2008-10-30 2016-01-20 パワー ジェネレーション テクノロジーズ ディベロップメント ファンド エルピー トロイダル境界層ガスタービン
KR101592481B1 (ko) 2009-02-06 2016-02-05 삼성전자 주식회사 액정 표시 장치 및 그 제조 방법
JP2010026529A (ja) * 2009-10-27 2010-02-04 Nitto Denko Corp 液晶表示用広視野角偏光フィルムおよび液晶表示用広視野角偏光粘着フィルム
US9360596B2 (en) 2013-04-24 2016-06-07 Light Polymers Holding Depositing polymer solutions to form optical devices
KR102114789B1 (ko) 2013-12-18 2020-05-26 삼성디스플레이 주식회사 편광판, 이를 포함하는 표시장치 및 편광판의 제조방법
IL232197B (en) 2014-04-23 2018-04-30 Lumus Ltd Compact head-up display system
US9829617B2 (en) 2014-11-10 2017-11-28 Light Polymers Holding Polymer-small molecule film or coating having reverse or flat dispersion of retardation
IL235642B (en) 2014-11-11 2021-08-31 Lumus Ltd A compact head-up display system is protected by an element with a super-thin structure
US9856172B2 (en) 2015-08-25 2018-01-02 Light Polymers Holding Concrete formulation and methods of making
CN113156647B (zh) 2016-10-09 2023-05-23 鲁姆斯有限公司 光学装置
KR102310397B1 (ko) 2016-11-08 2021-10-08 루머스 리미티드 광학 컷오프 에지를 구비한 도광 장치 및 그 제조 방법
TWI754010B (zh) 2017-02-22 2022-02-01 以色列商魯姆斯有限公司 導光光學組件
KR102501345B1 (ko) 2017-03-22 2023-02-17 루머스 리미티드 중첩 파셋
IL251645B (en) 2017-04-06 2018-08-30 Lumus Ltd Waveguide and method of production
US10403435B2 (en) 2017-12-15 2019-09-03 Capacitor Sciences Incorporated Edder compound and capacitor thereof
US10551544B2 (en) 2018-01-21 2020-02-04 Lumus Ltd. Light-guide optical element with multiple-axis internal aperture expansion
US10962696B2 (en) 2018-01-31 2021-03-30 Light Polymers Holding Coatable grey polarizer
AU2019274687B2 (en) 2018-05-23 2023-05-11 Lumus Ltd. Optical system including light-guide optical element with partially-reflective internal surfaces
US11370914B2 (en) 2018-07-24 2022-06-28 Light Polymers Holding Methods of forming polymeric polarizers from lyotropic liquid crystals and polymeric polarizers formed thereby
IL281242B2 (en) 2018-09-09 2024-06-01 Lumus Ltd Optical systems that include light-guiding optical elements with two-dimensional expansion
EP4220276A3 (fr) 2019-01-24 2023-08-09 Lumus Ltd. Systèmes optiques comprenant un loe à expansion en trois étapes
WO2020261279A1 (fr) 2019-06-27 2020-12-30 Lumus Ltd. Appareil et procédés de suivi de l'œil sur la base de l'imagerie de l'œil par l'intermédiaire d'un élément optique de guide de lumière
IL309979A (en) 2019-07-04 2024-03-01 Lumus Ltd Figure waveguide with symmetric light beam multiplication
CA3223538C (fr) 2019-12-05 2024-02-20 Lumus Ltd Element optique de guidage de lumiere utilisant des reflecteurs partiels revetus complementaires, et element optique de guidage de lumiere ayant une diffusion de lumiere reduite
JP7497079B2 (ja) 2019-12-08 2024-06-10 ルーマス リミテッド コンパクト画像プロジェクタを備える光学系
IL294151A (en) 2019-12-30 2022-08-01 Lumus Ltd Optical systems including light-guiding optical elements with two-dimensional expansion
IL297051B2 (en) 2020-05-24 2023-10-01 Lumus Ltd Manufacturing method of light-conducting optical components
WO2022180634A1 (fr) 2021-02-25 2022-09-01 Lumus Ltd. Multiplicateurs à ouverture optique ayant un guide d'ondes rectangulaire
CN116635773A (zh) 2021-03-01 2023-08-22 鲁姆斯有限公司 具有从投影仪到波导中的紧凑耦合的光学系统
IL308019B2 (en) 2021-05-19 2024-06-01 Lumus Ltd Active optical engine
JP7475757B2 (ja) 2021-07-04 2024-04-30 ルーマス リミテッド 積層導光素子が視野の異なる部分を提供するディスプレイ
US11796740B2 (en) * 2021-07-30 2023-10-24 Chiral Quantum Inc. Optical device
CN117651892A (zh) 2021-08-23 2024-03-05 鲁姆斯有限公司 具有嵌入式耦入反射器的复合光导光学元件的制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639069A (en) * 1982-06-30 1987-01-27 Teijin Limited Optical laminar structure
WO1994025895A1 (fr) * 1993-04-30 1994-11-10 Videojet Systems International, Inc. Dispositifs optiques
WO1994028073A1 (fr) * 1993-05-21 1994-12-08 Russian Technology Group Polariseurs de lumiere dichroiques insensibles a la temperature et a la lumiere
WO1996016402A1 (fr) * 1994-11-22 1996-05-30 Akzo Nobel N.V. Support de memorisation numerique fonde sur le principe de fabry-perot
WO1997008692A1 (fr) * 1995-08-30 1997-03-06 Akzo Nobel N.V. Support d'enregistrement optique contenant un colorant au squarilum ou croconium de thiophene

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208063A (en) 1981-06-17 1982-12-21 Japan Storage Battery Co Ltd Lead storage battery comprising cell having electrolyte uniforming device
FR2606418B1 (fr) * 1986-11-07 1994-02-11 Commissariat A Energie Atomique Dispositifs optiques a cristal liquide lyotrope commandables thermiquement, electriquement ou magnetiquement
US5126880A (en) * 1990-12-18 1992-06-30 The Dow Chemical Company Polymeric reflective bodies with multiple layer types
US5673127A (en) * 1993-12-01 1997-09-30 Matsushita Electric Industrial Co., Ltd. Display panel and display device using a display panel
EP0736187B1 (fr) 1993-12-21 2002-04-03 Minnesota Mining And Manufacturing Company Polariseur optique
US5828488A (en) * 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
US5686979A (en) * 1995-06-26 1997-11-11 Minnesota Mining And Manufacturing Company Optical panel capable of switching between reflective and transmissive states
RU2120651C1 (ru) * 1996-04-15 1998-10-20 Поларайзер Интернэшнл, ЛЛСи Жидкокристаллический индикаторный элемент
KR100607739B1 (ko) 1997-12-16 2006-08-01 고수다르스체니 노크니 첸트르 로시스코이 페데라치 편광기와 액정디스플레이

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639069A (en) * 1982-06-30 1987-01-27 Teijin Limited Optical laminar structure
WO1994025895A1 (fr) * 1993-04-30 1994-11-10 Videojet Systems International, Inc. Dispositifs optiques
WO1994028073A1 (fr) * 1993-05-21 1994-12-08 Russian Technology Group Polariseurs de lumiere dichroiques insensibles a la temperature et a la lumiere
WO1996016402A1 (fr) * 1994-11-22 1996-05-30 Akzo Nobel N.V. Support de memorisation numerique fonde sur le principe de fabry-perot
WO1997008692A1 (fr) * 1995-08-30 1997-03-06 Akzo Nobel N.V. Support d'enregistrement optique contenant un colorant au squarilum ou croconium de thiophene

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
APPL. PHYS. LETT. vol. 69, no. 21, 18 November 1996, pages 3128 - 3130, XP000643597 *
See also references of WO9908140A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004068179A2 (fr) * 2003-01-24 2004-08-12 Nitto Denko Corporation Polariseur de correction de couleur
WO2004068179A3 (fr) * 2003-01-24 2004-11-11 Optiva Inc Polariseur de correction de couleur
US7144608B2 (en) 2003-01-24 2006-12-05 Nitto Denko Corporation Color correcting polarizer
US9353092B2 (en) 2013-06-27 2016-05-31 University Of Notre Dame Du Lac Synthesis and use of croconaine compounds

Also Published As

Publication number Publication date
US6942925B1 (en) 2005-09-13
CN1271422A (zh) 2000-10-25
EP1014119B1 (fr) 2005-11-02
CN1109903C (zh) 2003-05-28
WO1999008140A1 (fr) 1999-02-18
EP1014119A4 (fr) 2001-12-12
JP3792510B2 (ja) 2006-07-05
DE69832185T2 (de) 2006-08-03
DE69832185D1 (de) 2005-12-08
JP2001512845A (ja) 2001-08-28
RU2124746C1 (ru) 1999-01-10

Similar Documents

Publication Publication Date Title
EP1014119B1 (fr) Polariseur dichroique
KR960002308B1 (ko) 편광장치 및 이 편광장치를 사용한 투사형표시장치
US5469279A (en) Chiral smectic liquid crystal multipass optical filters including a variable retarder (and a variable isotropic spacer)
US5400174A (en) Optical notch or minus filter
CA2290860C (fr) Systeme d'eclairage polarisant en contre-jour pour ecrans a cristaux liquides a vision directe
US6317264B1 (en) Thin film polarizing device having metal-dielectric films
EP1162491A2 (fr) Appareil d'irradiation par la lumière polarisée
US8879150B1 (en) Optical thin-film polarizing bandpass filter
US7113337B2 (en) Multilayer optical coating
KR20040012694A (ko) 액정 정보 디스플레이
WO2007083158A2 (fr) Polariseur multicouches
US3428388A (en) Layered structure ultraviolet polarizer
US4407566A (en) Optical filter
KR100657725B1 (ko) 다층 광학 코팅
Gritz Near-infrared (IR) polarizing glass
RU2001118989A (ru) Многослойное оптическое покрытие
US5973835A (en) Multilayer thin-film broad-band polarizing beam-splitter
RU2140094C1 (ru) Оптический поляризатор
Li The design of optical thin film coatings with total and frustrated total internal reflection
US3697152A (en) Tuning method for plural layer liquid crystal filters
JPH03157621A (ja) 偏光光源装置
Hunter Polarizers for the extreme ultraviolet
Lazarev et al. E-type polarizers and retarders
RU2147759C1 (ru) Поляризатор
Zhao et al. A novel design for Glan-Taylor prism without interference effect

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000216

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI NL SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MIROSHIN, ALEXANDR ALEXANDROVICH

Inventor name: MALIMONENKO, NKOLAI VLADIMIROVICH

Inventor name: BELYAEV, SERGEI VASILIEVICH

Inventor name: LAZAREV, PAVEL IVANOVICH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OPTIVA, INC.

A4 Supplementary search report drawn up and despatched

Effective date: 20011025

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): CH DE FR GB IT LI NL SE

RIC1 Information provided on ipc code assigned before grant

Free format text: 7G 02B 5/30 A, 7G 02B 1/08 B, 7G 02B 27/28 B, 7G 11B 7/24 B, 7G 02F 1/21 B

17Q First examination report despatched

Effective date: 20020225

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NITTO DENKO CORPORATION

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051102

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69832185

Country of ref document: DE

Date of ref document: 20051208

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060202

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: RITSCHER & PARTNER AG

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060803

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: RITSCHER & PARTNER AG;RESIRAIN 1;8125 ZOLLIKERBERG (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20080803

Year of fee payment: 11

Ref country code: DE

Payment date: 20080814

Year of fee payment: 11

Ref country code: CH

Payment date: 20080912

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080818

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080813

Year of fee payment: 11

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20100301

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090803

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100301

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090803